Stole material? (3)
I believe the answer is:
fur
'stole material?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fur that I've seen before include "Hard water pipe coating" , "Deposit lining kettles" , "Expensive coat; deposit in kettle" , "Hide" , "Coating formed on sick person's tongue (3)" .)